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Idler Sprockets: Ball Bearing Idler Sprockets have sealed ball bearings with extended internal competition and sprockets setscrews for securing to the shaft.

Projection From Centerline – Because of dimensional variation among bearing manufacturers this dimension may vary slightly when different brands of bearings are used. For those who have a crucial application please call for specific dimensions.

Inner Race projection offers 2 set screws on long aspect to secure bearing to shaft.

“Basic Dynamic Rankings” calculated according to AFBMA standard for “Long Rating And Fatigue Existence For Ball Bearings”

Accurately machined, medium carbon steel sprockets and precision floor ball bearings are assembled to provide a heavy duty idler for the most serious conditions. The bearings are pre-lubricated and sealed to retain grease and exclude dirt and moisture. They are not re-lubricatable. The extended inner race with setscrew allows fastening to a pin or shaft without collars or spacing products. It also provides clearance for the chain when bolting the sprocket right to a frame member or tensioning gadget. A little sprocket for close quarters and a larger one for heavier services is supplied in each pitch. If sizes other than those listed are needed, make sure you inquire for quotation.